Betonarme Binalarda Dolgu Duvarların Deprem Etkisi Altındaki Davranışının İncelenmesi

Konferans Bildirisi -- Teorik ve Uygulamalı Mekanik Türk Milli Komitesi, 2013Conference Paper -- Theoretical and Applied Mechanical Turkish National Committee, 2013Bu çalışmada, betonarme binalarda dolgu duvarların deprem etkisi altındaki yapısal davranışının incelenmesi amaçlanmıştır. Dolgu duvarların yapının taşıyıcı sistemi üzerindeki etkileri ve dolgu duvar modelleri ayrıntılı olarak incelenmiştir. Çalışmada, altı katlı ve on iki katlı iki betonarme bina kullanılmıştır. Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik 2007 ve TS 500 Betonarme Yapıların Tasarım ve Yapım Kuralları’ na uygun olarak her iki bina için taşıyıcı sistemler tasarlanmıştır. Binalar dolgu duvarsız, tuğla dolgu duvarlı ve gazbeton dolgu duvarlı olarak oluşturulmuştur. Dolgu duvarsız, tuğla dolgu duvarlı ve gazbeton dolgu duvarlı binaların taşıyıcı sistemlerinin üç boyutlu modelleri SAP2000 yapı analiz programında oluşturulmuş ve Eşdeğer Deprem Yükü Yöntemi kullanılarak çözüm yapılmıştır. Dolgu duvarlar deneysel ve analitik çalışmaların ışığında eşdeğer diyagonal basınç çubukları olarak modellenmiştir. Çözümleme sonrasında tüm modellerin doğal titreşim periyotları, taban kesme kuvvetleri, yer değiştirme değerleri, kat rijitlik değerleri, burulma düzensizliği katsayıları ve etkin göreli kat ötelemesi değerleri elde edilmiştir. Modellerin analiz sonuçları karşılaştırılmış ve yorumlanmıştır. Anahtar Kelimeler: Dolgu duvar etkisi, Dolgu duvarlı çerçeveler, Dolgu duvarlı perde çerçeveler, Eşdeğer diyagonal basınç çubuğuIn this study, investigating structural behavior of infill walls in reinforced concrete buildings under earthquake effect is aimed. Effects of infill walls on the bearing system of structure and the modeling of infill walls are investigated in detail. In the study, two reinforced concrete buildings, six-story and twelve-story, are examined. The bearing frame systems for each building are designed in accordance with Turkish Earthquake Code 2007 and Turkish Standards 500. The buildings are constituted without infill walls, with brick infill walls and with aerated concrete infill walls. Three dimensional models of the bearing frame systems of the buildings with and without infill walls are constituted in SAP2000 structural analysis program and analyzed by using Equivalent Seismic Load Method. Infill walls are modeled as equivalent diagonal pressure bars in the light of experimental and analytical works. After the analyses the values of free vibration periods, base shear forces, displacements, rigidities of tories, torsional irregularity factors and effective relative story drifts of all models are obtained. The analysis results of the models are compared and commented. Keywords: Effect of infill wall, Frames with infill walls, Shear wall-frames with infill walls, Equivalent diagonal pressure ba

The Perceptions of Young Adults Towards Social Gender Roles

Objective: This study aims to provide an in-depth knowledge of the perspectives of young adults on gender roles. There is a lack of literature in the appropriate age classes. Methods: The study is descriptive in nature and includes 473 students. This research was conducted using a questionnaire and the Social Gender Perception Scale (SGPS) to collect data. Results: It was determined that 52.4% of the study participants were female and 47.6% were male. 63% of the participants were affiliated with the Faculty of Health Sciences, while the remainder were students from other faculties. The average SGPS score of the participants was 95.62±18.17, but this score varied based on socio-demographic variables. Specifically, being female, possessing an undergraduate degree or higher, studying in a health sciences faculty, and having a mother who completed primary school or higher were all linked to higher SGPS mean scores. Furthermore, statistical analysis revealed a significant difference between these groups (p\u3c0.05). Conclusion: It is imperative that parents are provided with educational programs aimed at fostering knowledge of social gender roles and cultivating egalitarian attitudes and viewpoints. It is important to strategically design and execute research endeavours aimed at ascertaining the perspectives and attitudes of parents of young individuals with respect to societal gender roles

Lactoferrin Levels in the Gastric Tissue of Helicobacter pylori-Positive and -Negative Patients and Its Effect on Anemia

Aim. To determine gastric tissue lactoferrin (Lf) levels of Helicobacter pylori- (Hp-) positive and -negative patients and its effect on anemia. Methods. Cases in which initial presentation was of abdominal pain and that were Hp-positive at endoscopy were included. Hp-positive cases and -negative controls were divided into two groups. Results. The study included 64 cases (average: 10.2 ± 0.4 years, 39 male and 25 female). Lf levels were subsequently studied on 61 cases. 45 (73.8%) of these were Hp-positive, while 16 (22.2%) were Hp-negative. In Hp-positive cases, mean staining percentages and density of glands in the antral mucosa were 45.5 ± 4.7% and 1.9 ± 0.1, respectively. Hp-negative cases showed significantly different values of 17.8 ± 4.5% and 1.3 ± 0.2, respectively. Hemoglobin and serum ferritin values of Hp-positive cases were 12.7 ± 0.2 g/dL and 32.5 ± 2 ng/mL, but these were comparable with Hp-negative cases (12.6 ± 0.1 g/dL and 30.7 ± 4.4 ng/mL). Conclusions. Tissue Lf was significantly higher in Hp-positive cases compared to Hp-negative cases, but no difference was observed between the two groups with regards to hemoglobin and ferritin level. As a result, it is difficult to say that this rise in Lf plays a role in the development of iron deficiency anemia in Hp-positive patients

Prognostic factors for lymph node negative stage I and IIA non-small cell lung cancer: Multicenter experiences

Surgery is the only curative treatment for operable non-small lung cancer (NSCLC) and the importance of adjuvant chemotherapy for stage IB patients is unclear. Herein, we evaluated prognostic factors for survival and factors related with adjuvant treatment decisions for stage I and IIA NSCLC patients without lymph node metastasis. Materials and Methods: We retrospectively analyzed 302 patients who had undergone curative surgery for prognostic factors regarding survival and clinicopathological factors related to adjuvant chemotherapy. Results: Nearly 90% of the patients underwent lobectomy or pneumonectomy with mediastinal lymph node resection. For the others, wedge resection were performed. The patients were diagnosed as stage IA in 35%, IB in 49% and IIA in 17%. Histopathological type (p=0.02), tumor diameter (p=0.01) and stage (p<0.001) were found to be related to adjuvant chemotherapy decisions, while operation type, lypmhovascular invasion (LVI), grade and the presence of recurrence were important factors in predicting overall survival (OS), and operation type, tumor size greater than 4 cm, T stage, LVI, and visceral pleural invasion were related with disease free survival (DFS). Multivariate analysis showed operation type (p<0.001, hazard ratio (HR):1.91) and the presence of recurrence (p<0.001, HR:0.007) were independent prognostic factors for OS, as well visceral pleural invasion (p=0.01, HR:0.57) and LVI (p=0.004, HR:0.57) for DFS. Conclusions: Although adjuvant chemotherapy is standard for early stage lymph node positive NSCLC, it has less clear importance in stage I and IIA patients without lymph node metastasis

Gıdalardaki katkı maddeleri

Food additives are defined as substances which aren't consumed alone as food, but are permitted to be used to protect, fix and prevent unwanted changes of food during preparation, classification, processing, packaging, transportation, storage and distribution of them. The purpose is to extend the shelf life of foods, to preserve the food qualities, to improve/develop sensory properties, to prevent the health risks, to reduce food losses, to have the technological requirement, to increase food diversity, to protect the human health. Food additives are grouped under three main headings to be in the form of colorants, sweeteners and other additives. The use of food additives is regulated by laws. The purpose of these regulations is to prevent poor use of food additives and their adverse effects on health. Because the use of food additives has been became inevitable, the awareness has became necessary. Control of food label and sale conditions are very important considerations. (Turk Arch Ped 2010; 45: 315-8

Hemşirelerin el yıkama davranışlarının değerlendirilmesi

Bu araştırma hemşirelerin el yıkama davranışlarını, el yıkamayı tercih ettikleri durumları, el yıkamalarını engelleyen durumlar ve el yıkama kalitesi başlıkları altında bir el yıkama eğitim programı öncesi ve sonrasında değerlendirmek ve geliştirilmesi yönünde öneriler getirmek amacıyla, ocak 2009 ve mart 2009 tarihleri arasında Trakya Üniversitesi Araştırma ve Uygulama Hastanesi‘nde çalışan 200 hemşire ile yapıldı. Verilerin toplanmasında araştırmacı tarafından geliştirilen bireysel bilgi formu, ön test ve son test anket formu kullanıldı. Araştırmada hemşirelere 40 dakika süren el hijyeni eğitimi ve eğitim sonunda araştırmacı tarafından hazırlanan eğitim kitapçığı verildi. Veriler eğitim öncesi ve eğitim verildikten 1 ay sonra olmak üzere iki kez hemşireler ile görüşülerek toplandı. Araştırmaya katılan hemşirelerin sorulara verdikleri yanıtlar bilgisayarda SPSS (Statistical Package of Sosial Science) programına kodlanıp, analizi Trakya Üniversitesi Sağlık Araştırma ve Uygulama Merkezi Halk Sağlığı Bölümünde Statistica 7.0 (Lisans Code:31N6YUCV) paket programı kullanılarak yapıldı. Sonuçlar sayı (yüzde), ortalama ± standart sapma (ort ± SD) olarak ifade edildi. Dki kategoriden oluşan değişkenlerin eğitim öncesi bilgi düzeyleri ile eğitim sonrası bilgi düzeyleri arasında fark olup olmadığı Mc Nemar ki kare testi ile incelendi. P<0.05 değeri istatistiksel anlamlılık sınırı olarak kabul edildi. Araştırma sonuçlarına göre, hemşirelerin bir vardiyada el yıkama sayısı, her bakım uygulaması sonrasında el yıkamaya zaman ayırmaları, el yıkama ile ilgili bilgileri, el hijyeni ürününe daha fazla ulaşabilmeleri, el antiseptiği kullanma oranları ve el yıkama kalitesi eğitim sonrası eğitim öncesine göre istatistiksel olarak anlamlı oranda arttığı belirlendi. Bu sonuçlar doğrultusunda, hemşirelere verilen el yıkama eğitimi hemşirelerin el yıkama davranışlarını olumlu yönde etkilemiştir

Food additives

Food additives are defined as substances which aren't consumed alone as food, but are permitted to be used to protect, fix and prevent unwanted changes of food during preparation, classification, processing, packaging, transportation, storage and distribution of them. The purpose is to extend the shelf life of foods, to preserve the food qualities, to improve/develop sensory properties, to prevent the health risks, to reduce food losses, to have the technological requirement, to increase food diversity, to protect the human health. Food additives are grouped under three main headings to be in the form of colorants, sweeteners and other additives. The use of food additives is regulated by laws. The purpose of these regulations is to prevent poor use of food additives and their adverse effects on health. Because the use of food additives has been became inevitable, the awareness has became necessary. Control of food label and sale conditions are very important considerations. (Turk Arch Ped 2010; 45: 315-8

Acute Acquired Comitant Esotropia In Adults: Is It Neurologic or Not?

Objectives. Acute acquired comitant esotropia (AACE) can be a diagnostic challenge for ophthalmologists and neurologists because of its association with neurological pathologies. Our study describes a series of adult patients with AACE of undetermined etiology. Methods. Data on the clinical findings of patients presented with AACE of undetermined etiology with a minimum follow-up of 1 year were retrieved from the medical records and the results analyzed. Results. A series of 9 esotropia cases (age range: 20–43 years) was reviewed. All patients had full duction and versions, without an A-pattern or V-pattern. All patients had esotropia for distance and near. Neurological evaluation in all cases was normal. Among patients, 3 were treated with prisms, 4 were treated with strabismus surgery, and 1 was treated with botulinum toxin injections; 1 patient declined treatment. In treated patients posttreatment sensory testing indicated restoration of binocularity that remained stable throughout follow-up of 1–9 years. The patient that declined treatment had binocular function with base-out prisms. Conclusion. Acute onset esotropia may be seen without a neurological pathology in adults. Good motor and sensory outcomes can be achieved in these patients with AACE of undetermined etiology via surgical and nonsurgical methods.PubMedWoSScopu